Propeller and flywheel



July 25, 1933. J. J. NOVAK 1,919,961

PROPELLER AND FLYWHEEL Filed April 9, 1931 2 Sheets-Sheet 1 2 my VENTOR July 25 1933. v J. J. NOVAK 1,919,961

PROPELLER AND FLYWHEEL Filed April 9, 1931 2 Sheets-Sheet 2 of the above-mentioned "character 'in which;

Another object ,isw-to provide j "fiefer ing partieiilarlv to This: inventioiff'itelates to novel: devioes fortransinittlng. "'fenei'gy, and particularly a adaptable v for 'usein 01 with pitopelle s; fly,-

of-suolimeohanisms.

1 one: 1f {the 'objeets of the e-e is to Y ntilize a transaxiali energy; to" -decrease the power-necessary to drive aiotating membersu 'c-h *as J pifopellef flywheel, on the like. Another qobjectf is to provide mechanism the transaxial energyiis generatedza'nd auto-.

in the device.

vicein which the transaXialforce is 'alito inatical ly transmitted;togfthe coopei ating Component partsvvhenevefresistaneefto ino tion increases.' I

. Anothei' I object is to 5 provide '1 "energy" storing l nenibei' tvhijch yields an additional,

source of" energy While in "motion fend h under stress..-

, principlelof flexing [with a hollovv jor 'etal pi'opelle having -pai'tioulaiiutility 1 aviatioinlnitsofvarioushinds} The foregoing andpthefobjects, vfeatum'zs and advantages of thei --inventi0n; Wil v readily understood fromjthe fl followingvjc le Wheelsjand the likefto increasejthe 'efiiciency inatically transmitted bycentrifugal lloi ce" Another obj ect' "s tof rnal';e 1use 1 ofsga novel:

' memb r 1n fcoope at on santoinotive" and 01 li-niited rotation withqreference'to'the drive shaft; 16. In theh'ub 15 are=ape1rti1res 13 th ough .whieh projecta pluralityn-of i f-iad'i'al contaetif Qds 117, having' thel-DJiendS I suitably 'seciifedi to the shaft 16; 'The-annu' la-TinembenfIO"hasopenings 18 for accoimnodati'on offthe blade extensions- 11a. :PivotM members l9 suitably hold blades 11' at th'eir respective apertures 18 for functioning therethrongh. Extensions 115a oi blades-11 are long enouglisfor drivingeontact withithe rods, 17 which are-tot fulcrum engagement with the blade extensions 11a fclnringi tota 7 Z-tionof the'parts.

a Y 7 z-"FigJ 3 illustrates a n niodifieation of: the

blade: 11 of Fig; 2,-ishowinga" poi'tion of thethrustareaof theblade'llinsidetheam V nular'meinberf10whioh, in this foi-im isu: 1 streamlined and adaptedfor use as a cowling of -an engine oriother power unit."

f ftillustrate'sythe inve tioneinbodied o in a hollow,propeller; wherein the hollow i jblades 100 with, their hnb portion 15?) are script-ion in connection thefaecomp any ingflraivmgs', wherein"severalfornis o sho'wn'in Fig.

'Fig flillustratesone liiethod-ofanplying" the inventiomto ia hollo vwor metal pi opel novel form'ofaflywheel. Fig. is a view taken nj the lin'e; of

Fig.5.

lithe-v invention aresl ovvnandare 'notto e 611 I l internal, surfaces of. the blades i100 serve to" :liniit:the os'cillation-of the extensions 1100. In zstai ting to operate, shaft 16?) I rotates "oontat Jr'odsl'lb: until the blade extensions l lmp 'ess against; the inner surfaee of the hollow propeller,ibladesfiherebj"causing the i Whole strnctureto revolve." Then siifficient Fig, i 5 shoivs the :inventiomtembodied in a;

mounted for limited rht'ation' "on the shaft 316?). 'Flexihleblades ,11' are pivotally se ciired to ithe hollow blades 10, havingtheir e' ;tensions 111a functioning; internally. 1 The, 'l

momentum is acquired,centrifugal! force radially outward thereby; centers the exten;

' sions in the hollowblades While thei'jods 17b maintain a fulcrum contact thei'ewitli,fland aetson the flexible blades 11 causing blades 00 to '1 v fo ward wi h r pect to s the drive-shaift 1'61): Centrifugal forc e aeting j "nineib quw bees i thel xteii ee shown in, Fig. 1 and Fig. 4;; i The shaft ot theinembers w I g l The dotted position 1015; the parts. :shown' in the flexible" blades 1 and. their pivot Any;- lflexing o'fthe' blades 11 results. in atrans-f aXial urge tothe revolving structure. The

' illustrated embodiment shown is one prey ferred form. However, the flexibie" blades' 111. and; their extensions 11a can; beinade to i function exteiiialily oi a inet'ai,propelleii I lInFigb the novel eiiibodinient liustrates the principle of the invention adaptable to a V V "otengagement then become fulcrum means toythe lever'ageof tl e extensions 11a and flywheel. The poi-responding pa'rts" have similarnunierical in'd 'catioi'is oiithe fori'ns in F ig, I5 is mouiited in pillow" blocks/24;.

"The driving means '25, slidab'le on shaft '23, comprises a gear .26, having an integral flange 27 from whichpins17a extendinto slots'l3a or. tliepoiveifii iits 30,.said power,

' unit includinga .weightedmember 11; and j extension lla. The power units 30ers pin 20.,

oted by suitable meaiis at 31 to arms or ele;

The stop collars also limit jitXiztl ilipveliielljts and 26 Jon-{the .shatEt' 23.

Fig. Bindicate the movement of the niieinber when starting or during rotation. This position shows an; overloadcondition when centrifugal-force actson the weight members orpjower units toafliect' a transaxial trans mission of the energy stored in jthewoight} or power units-to the. arms or element 32".: g

Itis to 'be understood that anfautomatic' ad ustinent. of the pivot and blades'inayiibe I adopted. However, the preferred form" shown is for. illustration a'ndclarity. onlyand asconstru cted in the exp'ei'im "al' model.

ITheI several members ofthe propelleriun'e5 tionas follows with 'referenceito Figs. 1:

and 2 l5 then starts torotatecausing the rim lO and blades: 11 to revolve. fWhenethel re quired speed is attained, centrifugal-l foi'celis.

greatest on the blades 11,holdingthem-reg 17 then become positionedmidway of. their to move forward releasing the rods 17 from l contact with the forward ends of theirslots .5 113., The driving" torque now',;f is through 1'. Havingthus the 'shai tllo, the contact rods 17, extensions lla'andthe rim'10. Driving via the hub trifugal force acts, immediately to correct, or act ngf iltward automat cally results in a trai 'saXial urge to the rim through their pivotsri The contact rods-.17 at: their points the blades 11;

1*"Tlie'inertiafmeinbeifs and" 11 of Figs.

units 9,.aiid 3()"i1i Figs. 2' and 6.1.]

7 :While the invention has been ill g j fl d g p 'separately as appliedlto a flywheel and ment'32, said element rotatable on the shaft 23"and having integrahtherewith aQgear 33 for: driving engagement-E with cooperative V mechanisms not shown; PinslYMiunctioi similar to rods 17 of Fig. 1, butintbisiform also'serve t0 limit'the oscillation of the ex-Q [i sg'is d nt g o i tensions llwat; the starting. operation} 4 The stop collars85. are, provided onftlie shaft j 23, as shown in Fig.6, 'to serve asthma bearings for thegear members 33 and .126.

propelleinuit Willfbe understood-thatit may equally fwell be employcdfin a combination eisya'nd the like.

" While there have; been disclosed in this specif cation several forms in which the in-, vent ion m ybe einbod1ed,-1t is to be understoodthat these forms are shown for the "purpose ,oii illiist'ration only' .andflthat the inventionisjnotfto be limited tov the specific i disclosures but mayfbe niodified -and 'embodie'd nf various other forms without deartingifron i"its spirit. In short, the in vention. incliides, all .the,; iiodific ,tioiis and embodiments coming within the scope of the foilowingclaims? descii Ioamri-s, .1 i v v V e I. An app'a, atusoiitlieclassdescribed coniprisingar" magi member, a relatively oscil 'latablel driven member .i otatable' I therewith, a shaftfor supporting said members, power supported by saiddriven member have'd my invention, what ing driving contact with said driving -ineniv ber, an'd sai'd-driven member. o'scillatable on The shaft-.16 isrotatedfjby anysuitable i 1 power. means "not shown, causing cont act rods 17 fixed theretoto engage the forward end of tl'lQllTlGSPQCtiVQSlOiJS1 13. The hub" said-shaft"; 1

comprising a a1 driving jrmember, an oscillatabler -drivenmember rotatable therewith, a

fshaift for supporting members, power units pparatus' 0 f fthef class describedioo 'iiun'ctioning' 011 said.driven'member and hav-.

ring driving contact with said'driving memsaid shai ti g I ,7 v 113 A rapparatus of the" class described, comprising a drivingmeinber an oscillatable member; j

V. e j bergandsaiddriven member oscillatable'on idlyou'tward or the run 10; the contact rods .driving member, an osoillatable drivenrmeln crum engagemen i during rotation. II a Ina mechanismafdriving member, a driven memberf supportedfthereonand adapted to rock; iduring rotation, and cene ber,- power units amounted on .said' driven member. and'adaptedvto transmit a. trans axial urge, and said driven member foscil- V 'latable on" said driving member.-

' '5. An apparatus of'the class described,

comprising rotating welements including adriving member,'an -osc1llatable dr1ven-mem I ber slidable on said driving nember, osciljlatory power unitsmounted on said 'drivenmember. and 'adaptedito'transmit agtrans- 1 axial urge during r0tation,;and 'means to limit the extentof oscillations'of saiddriven memberQ LI 5 j I 6'. An apparatus of'the class describedcomprising a driving member, oscillatory el 1 ments thereon; flexib'leunits secured to said elements and adapted to 'm'aintain an oscili-j" I latorly contact with said driving-r member I I I i -and anfoscillatable and rotatable cowling,

for rotationtherewith;

7." An apparatus of the i classlfdescribed', I comprising a driving member; and a slid ablei hub. elementr'th'ereon, including" pivotal I power means, secured: thereto, I havi ngi ful} t" with the "driving member I trifugal power "means secured-- to said driven member havingengagement with said drive ing member toafiectrotationsof said driven" means supported by said element having yieldable driving relation ithedriving.

member, and said element rotatable-with,

, I driven member "during oscillations thereon; v 1 11 An apparatuso'fthe class described,

I comprising a driving" member, an, oscillata- I ble driven member mounted. thereon" for" -rotation therewith, and; centrifugal elfective; means secured rtowsaid dr venimember, said centrifugal means being adaptedto rock during rotat on, and; said i driven member os- T cillatable on, said driving member." I

i .112. An' apparatusbf the class de cribed,

comprising a' drivinggmember, an oscillata-- 7 ble driven member, andfpower multiplying I,

' nisin; b

member adapted to rock in, proportion. to

the rocking motion. of said means.

I i"13'; -In combination with a propeller, os--- combination class described functioning cooperatively therew1th,and means to' cause saidpivotal "means toinclinedu'ring revolutions of said propeller;

a cillatable and pivotal means ofthe class de- 7 scribed attached thereto and rot ating,therewith, and adapted to transmit a 'tra'nsaxial urgeduring rotation; 1 i

I with propelling 7 means, oscillatableand'pivotal means. of the I 15. The combination of propelling means;

i 116. Thecombination ofpropeller means niean'sonsaid. cowlin'g toitransmit a trans- .axialurge, andineans' to'control the extent of oscillation ofsaid cowling; -I I 17. A 1 necl1anisn 1.1comprising a i driving I member and an oscill'atable driven member adapted 'to rockon said driving member I centrifugal means functioning] transaxiallyion said during; rotation therewith,

driven inem'ber and having lever to engage.

'tation of said mechanism; I I 18.;-A: propeller mechanism, comprising a drive shaft having radl'al arms, a movable itIlCl'jitll oscillatory cowling functioning co- Qopera'tively therewith, and means" to control the extent of oscillationofsaidfcowling,

ment' with the driving lmember to afliect'ro- V andoscillatable hub journaledto the drive,

shaft, members joining said 'hub with arim tral'ly of Saldj'llip for contact with said ra 'dlalarms to affect rotation of said mecha V A; flywheel mechanism; comprising a i drive shaift having radial arms, a movable -'and"oscillatable hub jouinaled-to the shaft "and means oini11 said hub with a rim,

propeller blades 1 .of airefoil 'cross sectio'ii I I rockableion sald rim and spaced thereon,

extensionsfl-of said bladesconvergingjcem 71 weighted members rockable on said rim and 5 r spacedthereon, extensions of said members ,Q v I i converging centrally; of said rim for contact wlth sald arms toafi'ect rotation of said."

tensions of said-' -in'ertia' 'members converg- "ing centrallyto the shaft and engagingjsaid driving membe1".' g r V JULIUS J.-NOVAK. 

